胸段硬膜外镇痛对腹腔镜结直肠手术后疼痛的影响及护理观察
흉단경막외진통대복강경결직장수술후동통적영향급호리관찰
Effect of thoracic epidural analgesia on postoperative pain relief and bowel function recovery in patients underwent laparoscopic colorectal resection
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